5 thoughts on “How to identify authentic red coral”

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    Make three points to buy corals. One must be uniform in color.
    The appearance of coral is completely different from that of how much color -like Bedtar. The luster of the beads has a certain direction. When it is magnified at a low double, it shows an extremely flame. The white rosary with fake white corals with shell shells can be identified through the parallel growth structure on the shell and its pink band trends.
    Per other identification features of corals are small and shallow round concave pits, which are the growth parts of individual corals. Small concave pits caused by some perforated marine creatures can also exist.
    The main substituts that imitate corals are cellular, wood and wax, none of them have a unique appearance of coral. When cellulite is heated, the camphor smell is produced. The wood can be scratched with fingernails, exposing the wooden structure under the artificial surface, and the sealing wax looks like a glass -like appearance under the magnifying glass. If necessary, you can use hydrochloric acid to identify these prolazes, because none of them will work with hydrochloric acid. Conversely, corals, shell pearls and shell shells react with hydrochloric acid.
    The value of red coral production is high, so people often use low -cost white corals to be dyed red to rush to call natural red corals. To identify the above fake red corals, you can use a cotton swab dipped in acetone. Because the color of the fake dyed dyed is monotonous and rigid, the surface is different. The dye can be seen in the small cracks of the coral with 10 times the large mirror. Essence
    The identifying dye coral depends on its dyeing level. Those who are dyed are not soft and natural, excessively glamorous, red without layers, and really red corals are candles red, red have layers, some are still red and white, and "fingerprints" are faintly revealed in the middle. Similar to people's fingerprints) is large compared to dyeing imitation.
    is not smooth or fake, but red coral is a national first -level protection animal. If there is no license issued by a state, it is not allowed to be sold. Taiwan red coral. You have to distinguish it carefully and beware of being fooled.
    The inside of the coral branches is not solid.
    [The imitation of red coral]

    This red corals used to use sea bamboo and sea willow dyeing are the most common. n
    The red corals of the quality secondary to fill the natural red coral by dyeing and glue filling;

    Formation corals of various shapes;

    The dyed marble, plastic, glass, etc.

    [The maintenance of red coral]

    The except for the same maintenance method as other gems, because of its special physical chemical properties, it is destined to wear and maintain maintenance. The complexity.

    This below should not wear red coral jewelry:
    The strenuous sports;
    bathing;
    cooking;
    swimming;
    sweating Wait.

    If you get black and dirty, please get a professional red coral company re -polished by professionals.

    The illegal merchants will make huge profits through fraud. Generally, there are two types of counterfeiting:

    The first type: use substances similar to corals to make imitation products Essence Mainly -

    D dyeing bone products
    usually uses beef bones or animal bones such as bone or elephant bone to dye or imitate after coating. Essence The coral horizontal section has radiation -like, with a concentric circular structure; the longitudinal surface has continuous waveform texture; and the bone product has a discontinuous straight texture, and the coral has the characteristics of white heart and white spots. The color characteristics of the two are also different. The coral red is naturally produced, the whole body is color, the dyeing bone product is different, and the color will be lighter or lighter.

    D dyeing Dali
    D dyeing Dali rock granular structure, and the hardness is much higher than the coral. It looks strong on the surface and feels bright. If possible, you can test it with dilute acid. After the dyeing marble reaction, the solution becomes red, and the solution is still white after the red coral reaction.
    Bed pearl
    The color and appearance of the beads are similar to the coral, but the luster of the beads has a certain direction, and the density is larger than the coral.

    The second type: change the color of coral with poor white or colors —

    bleaching
    usually uses hydrogen peroxide to remove the turbid colors of corals, especially dead Branches coral, otherwise it will be turbid yellow. Generally, dark corals can get light corals by bleaching. Black corals can be bleached to golden yellow, while dark red corals can be bleached to pink.

    D dye coral
    The easiest way to identify is to wipe with a cotton swab dipped in acetone. In addition, the color of the dye coral is different. The dyes are concentrated in the small cracks and particles, and the color is shallow inside and uneven. The dye coral is easy to fade or lose its luster after wearing it.

    above is a simple way to identify pearls and corals. It is also a traditional method of experience. It can only be used as a reference for identification. For consumers who lack experience, the authenticity of them is very true. It is difficult, so it is recommended to buy jewelry with identification certificates as much as possible, or send jewelry to an authoritative testing agency for testing to ensure the quality of the jewelry.

  2. Drilling a eye from the bottom, using a small flashlight to look in the eyes, the same color as the outside may be true, different must be false.
    has shapes, red corals are thin, white coral branches are thicker, and nodules are different. You can see a good comparison.

  3. Pay content for time limit to check for freenAnswer kiss, hello, I am glad to provide you with answers. There are many ways to distinguish the authenticity of red corals. The following methods of identifying the authenticity of red corals are relatively simple: 1. Look at texture, red coral is growth. In the deep sea, there will be stress patterns, and there are concentric lines in the cross -section; and many fake red coral patterns are radioactive texture, which is obviously different from natural red coral patterns. From the perspective of the vertical surface, the natural red coral is water -like or vortex -shaped, and the fake red coral vertically presents the parallel texture.n2. Looking at the color of the red coral, the color of the fake red coral is rigid and dull, and it will expose some white core, white dot and its own red boundaries. When the color of the fake red coral is exposed to alcohol or sweat, the discoloration and fading will occur. Natural red coral color is naturally atmospheric and will not fade.n3. Seeing defects, natural red corals will have various flaws, such as insect eyes and white cores. The fake red coral is flawless.n4. Looking at the identification certificate, whether it is the appraisal of red coral or other jewelry, it is more official practice to see the identification certificate, but the current identification certificate also has various fraud, so it must be dependent on whether it is a red coral identification certificate issued by the authoritative institution.nQuestion how to contact the appraisal agencynAnswer can be on TaobaonBeautiful groupnWait for the abovenProfessional institutionnThank you for asking!nAnswers are not politenMore 9nBleak

  4. Show a extremely flame. The white rosary with fake white corals with shell shells can be identified through the parallel growth structure on the shell and its pink band trends. The other identification of corals is a small and shallow round concave pit, which is the growth site of individual corals. Small concave pits caused by some perforated marine creatures can also exist. The main substitutes that imitate corals are Buyan, wood and wax

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